Fix capitalization and fill in Intenal connections section

Author: RebeccaTamachiro

src/content/docs/ssl/post-quantum-cryptography/index.mdx

@@ -63,12 +63,13 @@ flowchart LR
 
 ### 1. Visitor to Cloudflare
 
-As of [october 2023](https://blog.cloudflare.com/post-quantum-for-all/), all websites and APIs served through Cloudflare over TLS 1.3 support post-quantum hybrid key agreement. However, the connection is only post-quantum secured if the client also supports post-quantum cryptography.
+As of [October 2022](https://blog.cloudflare.com/post-quantum-for-all/), all websites and APIs served through Cloudflare over TLS 1.3 support post-quantum hybrid key agreement. However, the connection is only post-quantum secured if the client also supports post-quantum cryptography.
 
 Refer to [Post-quantum cryptography support](/ssl/post-quantum-cryptography/pqc-support/) for a list of browsers and other clients that are compatible with hybrid key agreements.
 
 ### 2. Internal connections
 
+As announced in [September 2023](https://blog.cloudflare.com/post-quantum-cryptography-ga/), most internal connections for the different Cloudflare products and systems have been upgraded to use post quantum cryptography.
 
+### 3. Cloudflare to your origin
 
-### 3. Cloudflare to your origin